In addition to the frame and bullnose concept, many of the gray spandrels were cast on a horizontal ribbed form liner. The resultant ribs, in combination with shadow lines created by the steps in the face of concrete, adds a significant amount of architectural interest to the building.
There are a total of 187 pieces of architectural precast concrete, all cast on a fiberglass form. Most of these pieces contain either the tan or the gray color as a single mix in a given element. However, many of the tan elements contain the gray bullnose. This casting of two colors in the same piece required a great deal of care and workmanship to keep the colors properly separated. All of the elements are given an acid-etch finish that simulates the look of natural stone, but at a significant savings in cost.
The spandrels are tall enough to provide for the Code required 42 in. of personal fall protection. And at 8 in. thick, both the spandrels and column covers also resist accidental vehicular impact.
About Stresscon Corporation
Stresscon Corporation designs, fabricates, and erects quality structural and architectural precast concrete structures for the construction communities of Colorado and the Rocky Mountain region. Founded in 1967 and a member of the EnCon Companies since 1993, Stresscon is PCI certified and specializes in institutional and commercial applications. Stresscon’
About The EnCon Companies
The EnCon Companies are specialty contractors providing precast/prestressed concrete systems and services to all facets of the construction marketplace. In addition to the corporate offices and the design group, both headquartered in Denver, Colorado, EnCon Companies maintains nine manufacturing facilities nationwide. Recognized as one of the leading precast companies in the United States, EnCon is pioneering the use of the latest technology for the design and fabrication of precast structures. For more information, visit www.enconunited.com.